The Mercedes-Benz W128 Coupe 220 SE, produced between August 1959 and November 1960, represents a refined iteration of the iconic Ponton series. This two-door coupe, positioned as a luxury vehicle, offered a more sporting and elegant alternative to the four-door sedan within the Mercedes-Benz lineup. While not a high-volume seller compared to its saloon counterpart, the W128 Coupe 220 SE is highly regarded by collectors for its distinctive styling, sophisticated engineering, and representation of post-war German automotive excellence. It served as a halo vehicle, showcasing Mercedes-Benz’s commitment to quality and innovation.
The Mercedes-Benz W128 Coupe 220 SE: A Detailed Overview
The W128 series, introduced in 1959, marked a significant step forward for Mercedes-Benz. It was the first model to feature unibody construction, enhancing both safety and rigidity. The 220 SE variant, equipped with a 2.2-liter inline-six engine and multi-port fuel injection, offered a substantial performance upgrade over previous models. The Coupe version, distinguished by its graceful lines and reduced weight, provided a more engaging driving experience. The “Hydrak” designation refers to the four-speed manual transmission offered, a relatively uncommon option that adds to the vehicle’s collectibility.
Engine & Performance
The heart of the 220 SE Coupe is the M127 III inline-six engine, displacing 2,195 cubic centimeters (133.95 cubic inches). This engine, producing 120 horsepower at 4,800 rpm and 189 Nm (139.4 lb-ft) of torque at 3,900 rpm, was a technological marvel for its time. The multi-port manifold fuel injection system, a relatively new technology in the late 1950s, contributed to improved fuel efficiency and smoother power delivery. While acceleration figures of 15 seconds to 100 km/h (62 mph) and 14.3 seconds to 60 mph may seem modest by modern standards, they were competitive for a luxury coupe of this era. The engine’s power-to-weight ratio of 85.7 hp per tonne provided adequate performance for comfortable cruising and spirited driving. Fuel consumption was rated at 10.9 liters per 100 kilometers (21.6 US mpg), which was reasonable for a vehicle of its size and capabilities.
Design & Features
The W128 Coupe’s design is characterized by its elegant proportions and understated luxury. The two-door coupe body style, with its flowing lines and panoramic windows, offered a more sporting appearance than the four-door sedan. The interior was appointed with high-quality materials, including leather upholstery and wood trim, creating a comfortable and refined cabin. The vehicle comfortably seats five passengers, although rear seat space is somewhat limited due to the coupe’s sloping roofline. Safety features, while limited by the standards of the time, included robust construction and effective drum brakes on all four wheels. The steering system employed a cone worm with recirculation balls, providing precise and responsive handling. The car’s dimensions – 4,700 mm (185.04 in) in length, 1,790 mm (70.47 in) in width, and 1,530 mm (60.24 in) in height – positioned it as a substantial vehicle, reflecting its luxury status.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | Ponton |
| Generation | W128 Coupe |
| Type (Engine) | 220 SE (120 Hp) Hydrak |
| Start of production | August, 1959 |
| End of production | November, 1960 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 5 |
| Doors | 2 |
| Fuel consumption (combined) | 10.9 l/100 km |
| Fuel consumption (US mpg) | 21.6 US mpg |
| Fuel consumption (UK mpg) | 25.9 UK mpg |
| Fuel consumption (km/l) | 9.2 km/l |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 15 sec |
| Acceleration 0 – 62 mph | 15 sec |
| Acceleration 0 – 60 mph | 14.3 sec |
| Maximum speed | 165 km/h (102.53 mph) |
| Weight-to-power ratio | 11.7 kg/Hp |
| Weight-to-torque ratio | 7.4 kg/Nm |
| Power | 120 Hp @ 4800 rpm |
| Power per litre | 54.7 Hp/l |
| Torque | 189 Nm @ 3900 rpm (139.4 lb.-ft. @ 3900 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 127 III / 127.983 |
| Engine displacement | 2195 cm3 (133.95 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 80 mm (3.15 in.) |
| Piston Stroke | 72.8 mm (2.87 in.) |
| Compression ratio | 8.7:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Kerb Weight | 1400 kg (3086.47 lbs.) |
| Max. weight | 1830 kg (4034.46 lbs.) |
| Max load | 430 kg (947.99 lbs.) |
| Fuel tank capacity | 62 l (16.38 US gal | 13.64 UK gal) |
| Length | 4700 mm (185.04 in.) |
| Width | 1790 mm (70.47 in.) |
| Height | 1530 mm (60.24 in.) |
| Wheelbase | 2700 mm (106.3 in.) |
| Front track | 1430 mm (56.3 in.) |
| Rear track | 1470 mm (57.87 in.) |
| Drivetrain Architecture | Rear wheel drive |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 4 gears, manual transmission Hydrak |
| Front suspension | Double wishbone, Transverse stabilizer |
| Rear suspension | Trailing arm |
| Front brakes | Drum |
| Rear brakes | Drum |
| Steering type | Cone worm with recirculation balls |
Today, the Mercedes-Benz W128 Coupe 220 SE is a sought-after classic, representing a high point in post-war German automotive design and engineering. Its combination of elegant styling, sophisticated technology, and relative rarity ensures its continued appeal to collectors and enthusiasts worldwide.
